Seiko Cal. 6641 - 439

Seiko 6641-439

The 6641-439 is a sought-after Automatic piece from Seiko's golden era. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-6f3d2b307bdf]

Also known as: Monster, Rally

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
11.2mm
Lug Width
21mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
60m
Dial Color
Silver
Jewels
34j
Frequency
28,800 bph
Power Reserve
66 hours
Year
1980

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